1 files changed, 168 insertions, 0 deletions
diff --git a/testsuite/delete_module.c b/testsuite/delete_module.c
new file mode 100644
index 0000000..f3ae20b
--- /dev/null
+++ b/testsuite/delete_module.c
@@ -0,0 +1,168 @@
+/*
+ * Copyright (C) 2012-2013  ProFUSION embedded systems
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <assert.h>
+#include <dirent.h>
+#include <dlfcn.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <stdarg.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include <shared/util.h>
+
+#include "testsuite.h"
+
+struct mod {
+	struct mod *next;
+	int ret;
+	int errcode;
+	char name[];
+};
+
+static struct mod *modules;
+static bool need_init = true;
+
+static void parse_retcodes(struct mod **_modules, const char *s)
+{
+	const char *p;
+
+	if (s == NULL)
+		return;
+
+	for (p = s;;) {
+		struct mod *mod;
+		const char *modname;
+		char *end;
+		size_t modnamelen;
+		int ret, errcode;
+		long l;
+
+		modname = p;
+		if (modname == NULL || modname[0] == '\0')
+			break;
+
+		modnamelen = strcspn(p, ":");
+		if (modname[modnamelen] != ':')
+			break;
+
+		p = modname + modnamelen + 1;
+		if (p == NULL)
+			break;
+
+		l = strtol(p, &end, 0);
+		if (end == p || *end != ':')
+			break;
+
+		ret = (int) l;
+		p = end + 1;
+
+		l = strtol(p, &end, 0);
+		if (*end == ':')
+			p = end + 1;
+		else if (*end != '\0')
+			break;
+
+		errcode = (int) l;
+
+		mod = malloc(sizeof(*mod) + modnamelen + 1);
+		if (mod == NULL)
+			break;
+
+		memcpy(mod->name, modname, modnamelen);
+		mod->name[modnamelen] = '\0';
+		mod->ret = ret;
+		mod->errcode = errcode;
+		mod->next = *_modules;
+		*_modules = mod;
+	}
+}
+
+static struct mod *find_module(struct mod *_modules, const char *modname)
+{
+	struct mod *mod;
+
+	for (mod = _modules; mod != NULL; mod = mod->next) {
+		if (streq(mod->name, modname))
+			return mod;
+	}
+
+	return NULL;
+}
+
+static void init_retcodes(void)
+{
+	const char *s;
+	struct mod *mod;
+
+	if (!need_init)
+		return;
+
+	need_init = false;
+	s = getenv(S_TC_DELETE_MODULE_RETCODES);
+	if (s == NULL) {
+		ERR("TRAP delete_module(): missing export %s?\n",
+						S_TC_DELETE_MODULE_RETCODES);
+	}
+
+	parse_retcodes(&modules, s);
+
+	for (mod = modules; mod != NULL; mod = mod->next) {
+		LOG("Added module to test delete_module:\n");
+		LOG("\tname=%s ret=%d errcode=%d\n",
+		    mod->name, mod->ret, mod->errcode);
+	}
+}
+
+TS_EXPORT long delete_module(const char *name, unsigned int flags);
+
+/*
+ * FIXME: change /sys/module/<modname> to fake-remove a module
+ *
+ * Default behavior is to exit successfully. If this is not the intended
+ * behavior, set TESTSUITE_DELETE_MODULE_RETCODES env var.
+ */
+long delete_module(const char *modname, unsigned int flags)
+{
+	struct mod *mod;
+
+	init_retcodes();
+	mod = find_module(modules, modname);
+	if (mod == NULL)
+		return 0;
+
+	errno = mod->errcode;
+	return mod->ret;
+}
+
+/* the test is going away anyway, but lets keep valgrind happy */
+void free_resources(void) __attribute__((destructor));
+void free_resources(void)
+{
+	while (modules) {
+		struct mod *mod = modules->next;
+		free(modules);
+		modules = mod;
+	}
+}